Woman shoots 3, self at YouTube in possible domestic dispute

SAN BRUNO, Calif. (AP) — A woman opened fire with a handgun Tuesday in a courtyard at YouTube headquarters, wounding three people before fatally shooting herself in what is being investigated as a domestic dispute, authorities said.

Terrified employees huddled inside, calling 911, as officers and federal agents swarmed the company's suburban campus sandwiched between two interstates in the San Francisco Bay Area city of San Bruno.

YouTube employee Dianna Arnspiger said she was on the building's second floor when she heard gunshots, ran to a window and saw the shooter on a patio outside.

She said the woman wore glasses and a scarf and was using a "big huge pistol."

"It was a woman and she was firing her gun. And I just said, 'Shooter,' and everybody started running," Arnspiger said.

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US proposes tariffs on $50 billion in Chinese imports

WASHINGTON (AP) — The Trump administration on Tuesday escalated its aggressive actions on trade by proposing 25 percent tariffs on $50 billion in Chinese imports to protest Beijing's policies that require foreign companies to hand over their technology.

China immediately said it would retaliate against the new tariffs, which target high-tech industries that Beijing has been nurturing, from advanced manufacturing and aerospace to information technology and robotics.

The Office of the U.S. Trade Representative issued a list targeting 1,300 Chinese products, including industrial robots and telecommunications equipment. The suggested tariffs wouldn't take effect right away: A public comment period will last until May 11, and a hearing on the tariffs is set for May 15. Companies and consumers will have the opportunity to lobby to have some products taken off the list or have others added.

The latest U.S. move risks heightening trade tensions with China, which on Monday had slapped taxes on $3 billion in U.S. products in response to earlier U.S. tariffs on steel and aluminum imports.

"China's going to be compelled to lash back," warned Philip Levy, a senior fellow at the Chicago Council on Global Affairs and an economic adviser to President George W. Bush.

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Impatient for wall, Trump wants US military to secure border

WASHINGTON (AP) — Frustrated by slow action on a major campaign promise, President Donald Trump said Tuesday he wants to use the military to secure the U.S.-Mexico border until his promised border wall is built.

Trump told reporters he's been discussing the idea with Defense Secretary Jim Mattis.

"We're going to be doing things militarily. Until we can have a wall and proper security, we're going to be guarding our border with the military," Trump said, calling the move a "big step."

It wasn't immediately clear exactly how the proposal would work or what kind of troops Trump wanted to deploy. But the White House later said Trump wanted to mobilize the National Guard.

Federal law prohibits the use of active-duty service members for law enforcement inside the U.S., unless specifically authorized by Congress. But over the past 12 years, presidents have twice sent National Guard troops to the border to bolster security and assist with surveillance and other support. The White House counsel's office has been working on the idea for several weeks, according to a senior official who spoke on condition of anonymity to discuss internal plans.

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Caravan migrants confused by President Trump's angry tweets

MATIAS ROMERO, Mexico (AP) — President Donald Trump's angry comments about a caravan of migrants ricochet around like a soccer ball in the dusty athletic complex in southern Mexico where the 1,000 or so Central Americans have camped since the weekend.

Trump's words have confused and befuddled families here, some of whom never intended on going all the way to the United States after the end of the "Stations of the Cross" caravan. It is a symbolic event held around Easter each year to raise awareness about the plight of migrants and has never left southern Mexico, though some participants then continue north on their own.

Even coordinators of the caravan seemed to misunderstand the debate in the U.S. when Trump's endorsed a "nuclear option" for pushing funding for his border wall through Congress. They told worried families Tuesday that the U.S. president had floated the idea of using a nuclear weapon against the caravan of mostly women and children who have fled violence in Central America.

Sitting on a thin foam pad and trying to corral her sons, 2-year old Jonathan and 6-year-old Omar, Gabriela Hernandez wondered aloud at what Trump must think of them.

"I see it as something really sad, because I don't understand how a child this age can make things difficult for him," said Hernandez, a 27-year-old who is two months pregnant.

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10 Things to Know for Wednesday

Your daily look at late-breaking news, upcoming events and the stories that will be talked about Wednesday:

1. WHERE TRUMP WANTS TO SEND US TROOPS

The president says he favors using the military to secure the U.S.-Mexico border until his promised border wall is built.

2. 'EVERYBODY STARTED RUNNING'

A woman opens fire at YouTube headquarters in northern California, setting off a panic among employees and wounding at least four people before fatally shooting herself.

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Liberal Dallet easily takes Wisconsin Supreme Court race

MADISON, Wis. (AP) — Rebecca Dallet, a liberal Milwaukee judge, easily defeated conservative Michael Screnock on Tuesday in the race for Wisconsin Supreme Court, fueling optimism among Democrats for more victories in the fall midterms.

The win in the first statewide general election in the country this year forced Gov. Scott Walker, who endorsed Screnock, to warn his fellow Republicans.

"Tonight's results show we are at risk of a #BlueWave in WI," Walker, who is up for re-election in November, tweeted. "Big government special interests flooded Wisconsin with distorted facts & misinformation. Next, they'll target me and work to undo our bold reforms."

Although the race was viewed by some as a bellwether, results of past Supreme Court elections have not consistently proven to be predictive of what will happen in November. President Donald Trump won the state by less than 1 percentage point in 2016, while Dallet thumped Screnock by double digits.

She won by a nearly 12-point margin with 87 percent of precincts reporting, based on unofficial results.

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APNewsBreak: Woman says she reported abuse in 2013

SEATTLE (AP) — A woman said Tuesday that she told Oregon child welfare officials in 2013 that Jennifer and Sarah Hart — who plunged off a California cliff with their children last month in an SUV — had been depriving the kids of food as punishment.

In a statement provided to The Associated Press, Alexandra Argyropoulos, a former friend of the Harts, said she "witnessed what I felt to be controlling emotional abuse and cruel punishment" toward the six children.

Argyropoulos said she was told after she made the report that Oregon officials had interviewed the children but it was apparent that each child had been coached by their mothers on what to say. She said she was told there was nothing more the Oregon Department of Human Services could do because there was not enough evidence to make a case.

"My heart is completely broken. The current system failed to protect these children from their abusers," Argyropoulos said.

Authorities have said social services officials in Oregon contacted the West Linn Police Department about the family in 2013 while they were living in the area. Police referred media questions to the Oregon Department of Human Services, which cited privacy laws in refusing to say whether the agency was involved.

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Cosby gets pair of key rulings, but not 'bandwagon' juror

NORRISTOWN, Pa. (AP) — Bill Cosby's lawyers have scored a pair of rulings crucial to their strategy of painting his accuser as a money-grubbing liar as jury selection in his sexual assault retrial continues for a third day.

Seven jurors have been picked so far. The process resumes on Wednesday in suburban Philadelphia.

Judge Steven O'Neill on Tuesday granted the Cosby team's request to call a woman who says accuser Andrea Constand talked about framing a celebrity before she lodged allegations against the comedian in 2005.

Constand's lawyer has said Marguerite Jackson isn't telling the truth.

The judge also ruled that jurors can hear how much Cosby paid Constand in a 2006 civil settlement.

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California proposal would limit when officers can open fire

SACRAMENTO, Calif. (AP) — Several lawmakers and the family of a 22-year-old unarmed black man who was fatally shot by police proposed Tuesday that California become the first state to significantly restrict when officers can open fire.

The legislation would change the standard from using "reasonable force" to "necessary force."

That means officers would be allowed to shoot only if "there were no other reasonable alternatives to the use of deadly force" to prevent imminent serious injury or death, said Lizzie Buchen, legislative advocate for the American Civil Liberties Union, which is among the groups behind the measure.

"We need to ensure that our state policy governing the use of deadly force stresses the sanctity of human life and is only used when necessary," said Assemblywoman Shirley Weber, a San Diego Democrat who introduced the bill. "Deadly force can be used, but only when it is completely necessary."

The goal is to encourage officers to try to defuse confrontations or use less deadly weapons, said Democratic Assemblyman Kevin McCarty of Sacramento, who is co-authoring the legislation.

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CDC: Drug-resistant 'nightmare bacteria' pose growing threat

"Nightmare bacteria" with unusual resistance to antibiotics of last resort were found more than 200 times in the United States last year in a first-of-a-kind hunt to see how much of a threat these rare cases are becoming, health officials said Tuesday.

That's more than they had expected to find, and the true number is probably higher because the effort involved only certain labs in each state, officials say.

The problem mostly strikes people in hospitals and nursing homes who need IVs and other tubes that can get infected. In many cases, others in close contact with these patients also harbored the superbugs even though they weren't sick — a risk for further spread.

Some of the sick patients had traveled for surgery or other health care to another country where drug-resistant germs are more common, and the superbug infections were discovered after they returned to the U.S.

"Essentially, we found nightmare bacteria in your backyard," said Dr. Anne Schuchat, principal deputy director of the U.S. Centers for Disease Control and Prevention.